It is true that cows, grain, and land were
more difficult to move from place to place
<span>Coins were developed as a medium of exchange
because they are easy and more convenient in negotiating and purchasing. For
example, the British pound, the yen, and the euro are examples of currencies.
It is letter A. Currencies are the money used in a certain country in their
everyday purchase of goods inside the country. When a person goes to other
country and exchange his or her money for another money that can be used inside
the country he is now currently in, then that is exchanging rates. Tariffs are the taxes payed by a certain
company of exporting or importing industry to transport it from one place or
country to another country.</span>
The magnitude of the work done to push the object is 90,000 J
<h3>
When is Work done on a body ?</h3>
Work is done on a body when the direction of the force applied is parallel to the direction of the displacement of the body.
The following parameters are given;
First convert the distance in kilometer to meter by multiplying it by 1000
S = 1.2 x 1000 = 1200 m
From the definition of work,
W = F x S
Substitute the parameters into the formula
W = 75 x 1200
W = 90,000 J
Therefore, the magnitude of the work done to push the object is 90,000 J
Learn more about Work here: brainly.com/question/25573309
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Pretty sure it's 10 feet of plant debris to form 1 foot of coal.
Answer:
a) The x coordinate of the third mass is -1.562 meters.
b) The y coordinate of the third mass is -0.944 meters.
Explanation:
The center of mass of a system of particles (), measured in meters, is defined by this weighted average:
(1)
Where:
- Mass of the i-th particle, measured in kilograms.
- Location of the i-th particle with respect to origin, measured in meters.
If we know that , , , , and , then the coordinates of the third particle are:
a) The x coordinate of the third mass is -1.562 meters.
b) The y coordinate of the third mass is -0.944 meters.
820 meters is the longest